PAL, S. K. (1982). Statistical techniques: A basic approach to geography. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)PAL, Saroj K. Statistical Techniques: A Basic Approach to Geography. New Delhi: McGraw-Hill, 1982.
Lua MLA (9ú heag.)PAL, Saroj K. Statistical Techniques: A Basic Approach to Geography. McGraw-Hill, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.